GS/DX12: Use Enhanced Barriers API#13792
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Some benchmarks on an RX 9060XT without and with enhanced barriers. 
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I have the LTSC version, i hope it wont be unsupported. :/ |
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If you are able, can you run the PR build, start either Big Picture Mode or a game in DX12 and check if |
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For anyone wondering, |
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For those with concerns about Win10 LTSC Also, after discussing with the team is seems we can just bundle the Agility SDK, provided it's still an optional dependency (which it is with the current PR code). |
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Closes #2073., --------------------------------------------------- pcsx2.mk v2.7.57 # Version: Commits on Jan 21, 2026 --------------------------------------------------- - [GS/DX12: Use Enhanced Barriers API](PCSX2/pcsx2#13792) , ------------------------------------------------------------------------------------- ppsspp.mk 7f553bf9b014c4aef127f4d853e861d254bfff44 # Version: Commits on Jan 21, 2026 ------------------------------------------------------------------------------------- Merge pull request #21138 from hrydgard/sdl-correct-word-wrap-height SDL: Fix measuring of multi-line strings., ------------------------------------------------------------------------------------ rpcs3.mk 3e49c32c9c59b2bdf6bb29ec7d1e44074ffad4e5 # Version: Commits on Jan 18, 2026 ------------------------------------------------------------------------------------ USB: Summonride updates, ----------------------------------------------------- ryujinx.mk 1.3.244 # Version: Commits on Jan 20, 2026 ----------------------------------------------------- Canary-1.3.244 ------------------------------------------------------------------------------------- vita3k.mk 275d9ad3953a1745b7d369694156144c6e939f8f # Version: Commits on Jan 21, 2026 ------------------------------------------------------------------------------------- gui/bgm player: Fix uninitialized prefs in Cubeb stream params. - The BGM player was creating cubeb_stream_params without initializing the prefs field. - This caused random loopback flags depending on stack garbage. 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Some allocation variables like `sv_numbots` and `sv_maxbots` start with `sv_` even though they are read by game. It's because they interfere with the server's allocation of clients., --------------------------------------------------------------------------------------- mangohud.mk 6dfe40c10fb2118766d18cdbffc3de55c9b0ac27 # Version: Commits on Jan 21, 2026 --------------------------------------------------------------------------------------- battery: ensure discharge power is always positive, ------------------------------------------------------------------------------------------------- shadps4-qtlauncher.mk 60e39def38262de5ef37743c7972077d02d5735e # Version: Commits on Jan 21, 2026 ------------------------------------------------------------------------------------------------- New translations en_us.ts (Czech) (#236), --------------------------------------------------------------------------------------------- rocknix-joypad.mk 7647fdb0fc89cd69b284903bf7707e861df5dc7e # Version: Commits on Jan 20, 2026 --------------------------------------------------------------------------------------------- Merge pull request #12 from sydarn/cansleep Take sleeping gpios into account, cansleep, ---------------------------------------------------------------------------------------- retroarch.mk 6131f07c4c79a08cbe4ab2c45831116440939bfd # Version: Commits on Jan 07, 2026 ---------------------------------------------------------------------------------------- minor vulkan tweaks, ---------------------------------------------------------------------------------------- doomretro.mk c419d5e1c37d186fe92736c154716325142eab67 # Version: Commits on Jan 21, 2026 ---------------------------------------------------------------------------------------- More minor tweaks, -------------------------------------------------------------------------------------- vkquake.mk 53300b653920b1d8a78915f1311d2fc876b9c480 # Version: Commits on Jan 21, 2026 -------------------------------------------------------------------------------------- Replace descriptor sets with device addresses for animation update compute shaders (#860), ----------------------------------------------------------------------------------------- sonic3-air.mk 4118fb70304f291065bc67b7f86ad668588facba # Version: Commits on Jan 20, 2026 ----------------------------------------------------------------------------------------- Updated metadata.json to fit version.inc, ---------------------------------------------------------------------------------- trx.mk f6f238c412209eb4cb2f0ab20c27cb00051da247 # Version: Commits on Jan 21, 2026 ---------------------------------------------------------------------------------- lua: add rooms.flip() and rooms.flip_effect() Resolves #4704., ------------------------------------------------------------------------------------------ xash3d-fwgs.mk b83d763a509486a2d9dcae84146448d0857ddca8 # Version: Commits on Jan 21, 2026 ------------------------------------------------------------------------------------------ 3rdparty: mainui: update, --------------------------------------------------------------------------------------------- libretro-citra.mk 07119967fb0e9bb7339bb681917301ace52eee60 # Version: Commits on Jan 18, 2026 --------------------------------------------------------------------------------------------- libretro core * Bringing citra libretro implementation over * libretro: hook up vulkan renderer * libretro: github actions * libretro: gyro * libretro: core options v2 * libretro: on ios turn off shader jit if unavailable * moltenvk 1.3.0 introduces 8-bit indexes but allocates 16-bit for metal; this ends up allocating stream buffer * 2 = 132MiB. Instead, just use 16-bit indexes. 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Description of Changes
Detect and use D3D12 enhanced barriers
Rationale behind Changes
Enhanced barriers allow us to specify the needed sync/access of a resource with greater control.
On hardware that is able to take advantage for this information, we see a significant speed increase.
Additionally, these barriers allow us to use the same resource for feedback, using simultaneous access textures with the common layout, we can specify the access flags we need for feedback.
Note: This does hit a validation bug that is currently only fixed in the agility version of D3D12Core.
Texture states are also represented using an enum, which may allow us to take advantage of the more fine grained control over sync/access during transitions.
Use of Agility SDK
The Agility SDK is required to support enhanced barriers on Windows 10.
The recommended way to use the Agility SDK is unsuitable for us, as it requires us to bundle the redistribution files.
As we are GPL, We can't bundle these files (or force the user to provide them), so an alternative method is used here.
We use
ID3D12SDKConfiguration1, to load the Agility SDK only if the user provides it, falling back to the OS D3D12 if missing.This is supported on the latest version of Win10 22H2 and Win 21H2 LTS.
SDK 1.608.0 is the oldest version loadable with this method, which happens to be the first version with enhanced barriers.
We could provide a separate download in future, much like what is currently done for ffmpeg.After discussion on the discord, it seems it's fine to bundle the Agility SDK
The CMake/MSBuild scripts and loader still make it an optional dependency.
Download and extraction is done as per other dependencies, instead of using nuget/dotnet CLI
Suggested Testing Steps
Test games using the DX12 renderer.
Did you use AI to help find, test, or implement this issue or feature?
No